- oneAPI: use
-fpscomp logicals
to correctly handleC_BOOL
.
MUST NOT use-standard-semantics
as it breaks linking with system libraries like MPI, even oneAPI's one oneMPI! - add more magic hex ids known
- simplify/improve how C++ standard is set (default C++20, fallback C++17 minimum)
- improve filesystem_type test
- more correctly / succinctly detect needed C++ features